Larks comments on Causal Universes - Less Wrong

60 Post author: Eliezer_Yudkowsky 29 November 2012 04:08AM

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Comment author: Larks 28 November 2012 12:19:51PM 2 points [-]

It would be nice if there was some topology where the causal worlds were dense in the acausal ones.

Comment author: Eugine_Nier 29 November 2012 05:51:44AM 1 point [-]

Unfortunately, this strikes me as unlikely.

Comment author: AlexMennen 04 December 2012 02:25:56AM 0 points [-]

Why would that be nice?

Comment author: devas 28 November 2012 12:26:02PM 0 points [-]

Yes, and I forgot to put it in.

Wait, causal worlds are dense IN acausal ones?

Is that a typo, and you meant "causal worlds were denser than acausal ones" or did I just lose a whole swath of conversation?

Comment author: Larks 28 November 2012 02:30:17PM 2 points [-]

I mean the class of causal worlds be dense in the class of worlds, where worlds consists of causal and acausal worlds. The same way we understand a lot of things in functional analysis: prove the result for the countable case, prove that taking compactifications/completions preserves the property, and then you have it for all separable spaces.